Schistosomiasis hematobia in preschool children of Ibadan, Nigeria.
D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D009549:Nigeria; D010063:Ovum; D012499:Sanitation; D012547:Schistosoma / Q000302:isolation & purification; D012552:Schistosomiasis / Q000453:epidemiology* / Q000382:microbiology; D012737:Sex Factors; D014881:Water Supply